Question

Microbes can survive in all kinds of environment ranging from ice cold to desert hot to marshy lands but then how is food kept in refrigerators preserved?

Answer 1

Some microbes (extremophiles) can survive in extreme conditions but not all.So some of the microbes can't survive in refrigerator temperature.

Refrigerator temperatures do not destroy pathogenic or spoilage microorganisms. The lower temperature does, however, slow the growth of microorganisms already in the food. Perishable food will deteriorate, even at refrigerator temperatures, due to spoilage microorganisms, enzymes and oxidation.